Hurricane Sandy's wild and crazy weather will continue across much of the eastern United States through at least Wednesday, including heavy rainfall, strong winds, a continued threat of coastal storm surge and even snow blizzard conditions in some locations, according to local National Weather Service forecasts. Here's a sampling of some of the expected conditions across the East Coast, and some of the reports of nasty weather Sandy already has delivered.

The National Hurricane Center's last forecast path for post-tropical cyclone SandyNational Hurricane Center

At 10 p.m. Central Daylight Time, the National Hurricane Center issued its last forecast for Sandy, which is now labeled a post-tropical cyclone. Future advisories will be issued by the National Weather Service's Hydrometeorological Prediction Center, which issues forecasts on non-tropical storm systems. At that time, the central low pressure was about 10 miles southwest of Philadelphia, still packing maximum sustained winds of 75 mph. The strongest winds are over water east of the center, and steady weakening is forecast over the next two days.

Hurricane force winds still extend outward up to 90 miles to the east of the center, and tropical storm force winds extend outward up to 485 miles.

Sandy's broad storm conditions cover much of the northeast United StatesNASA

While coastal tropical warnings have been dropped, many National Weather Service local offices have non-tropical high wind warmings in effect, and hurricane force wind gusts are possible all along the coast between Chincoteague, Va., and Chatham, Mass., overnight, with tropical storm force winds possible through much of New England, and as far south as extreme northeastern North Carolina.

Sandy is moving northwest at 18 mph, and is expected to slow as it continues northwest or west northwest through Tuesday. Then, the central low pressure will turn north and northeast, moving into western New York by Tuesday night.

The National Hurricane Center is warning that wind speeds are higher with elevation, meaning the upper floors high-rise buildings could see above hurricane-force winds.

The National Weather Service has forecast a complicated array of effects from Sandy over the next few days.National Weather Service

The collision of Sandy's tropical moisture with much colder air driven eastward by a low pressure system, into which Sandy has merged, also has prompted a blizzard warning for higher elevations in the Appalachian Mountains in West Virginia, with the brunt of the snowy conditions occurring Tuesday. The Charleston, W. Va., forecast office said the blizzard warning will remain in effect until 4 p.m., and snow can't be ruled out in valleys. It forecast snow accumulations of up to 3 feet above 3,000 feet elevation, with 10 to 18 inches expected above 2,000 feet.

Snow locations across the country include blizzard conditions in West Virginia.National Weather Service

In Farmington, Pa., just north of the border between West Virginia and Maryland, forecasters reported an unusual snow storm accompanied by thunder just before midnight Monday, with 3.4 inches of snow already on the ground.

With a full moon occurring as Sandy moved ashore, surge levels have increased significantly with each high tide, and forecasters warn that water levels in some coastal areas could continue to rise above land levels with each high tide for some time, with surge levels of 6 to 11 feet still possible in Long Island Sound, Raritan Bay and New York Harbor.

The tide gauge at The Battery, at the foot of Manhattan, measured 13.88 feet at 9:24 p.m. Eastern Daylight Time. The New York office of the National Weather Service forecast breaking waves of up to 20 feet along ocean-facing shorelines in that area, and up to 12-foot waves along eastern and northeastern facing portions of Long Island Sound and New York Harbor.

"The destructive waves on top of the storm surge will cause over-washes and significant damage to coastal structures nearest to sea level," it warned, with coastal flooding continuing into Tuesday.

At 9 p.m., the New York office said the Metropolitan Transit Agency was reporting that 4 feet of sea water was entering subway tunnels under the East River, while broadcast media were reporting that the Battery Tunnel between Manhattan and Brooklyn was flooded with at least 3 feet of water.

At 1st Avenue and 33rd Street in Manhattan, the New York University Medical Emergency Room was flooded, while in Brooklyn, broadcast media reported the New York Fire Department's Engine 206 headquarters on Grand Street being evacuated with boats.

Wind gusts of close to 80 mph were registered at John F. Kennedy Airport in Queens and Newark Airport in Essex, N.J., at the same time, 7:51 p.m. Meanwhile, floodwaters covered runways at Laguardia Airport in Queens.

In Sayreville, N.J., just south of New York, police and firefighters were performing rooftop water rescues at 9:45 p.m. Monday night, the result of surge moving up the Raritan River. Extensive flooding also was reported in the New Jersey oceanfront cities of Long Beach, Atlantic City and Cape May,

In portions of Maryland, Virginia and West Virginia surrounding Washington, D.C., numerous reports of wind gusts of 60 to 70 mph were recorded, and heavy rainfall prompted flood warnings in a number of locations.

Downed trees and power lines were everywhere along the coast and well inland, with many hitting homes and other buildings. The Department of Energy reported more than 3.6 million customers without power by 8:30 p.m. on Monday night, and warned that number is likely to grow significantly overnight.